There is an extensive literature claiming that it is often difficult to make use of arbitrage opportunities in nancial markets. This paper provides a new reason why existing arbitrage opportunities might not be seized. We consider a world with short-lived securities, no short-selling constraints...

In his seminal article, Samuelson (1965) proposes the maturity effect that volatility of futures prices should increase as futures contract approaches expiration. This study provides new evidence on the maturity effect by examining a more extensive set of futures contracts over longer period...

In a seminal article, Samuelson (1965) proposes the maturity effect that volatility of futures prices should increase as futures contract approaches maturity. This study provides new evidence on the maturity effect by examining a more extensive set of futures contracts than previous studies and...

Bubbles in asset markets have been documented in numerous experimental studies. However, all experiments in which bubbles occur pay dividends after each trading day. In this paper we study whether bubbles can occur in markets without dividends. We investigate the role of two features that are...

Following a dividend distribution, investors expect the stock price to decrease on the ex-dividend day. With no market imperfections, the price decrease should exactly match the amount of the dividend, thus eliminating all opportunities for profitable arbitrage. Allowing for different taxes on...

We present a version of the APT based on an asset index set of an arbitrary infinite cardinality. Under assumptions due to Ross and Chamberlain-Rothschild, we shhow that in the absence of gains from asymptotic arbitrage, the square of the deviations of the individual rates of return from a...

In this paper, we formulate a restatement of the theory of choice under uncertainty. As an alternative to the rank-dependent expected utility model, we develop a probability-altering theory in which the transformation of probabilities is weighted by the centered outcome of the lottery which may...

In frictionless securities markets, the characterization of the no arbitrage condition by the existence of equivalent martingale measures in discrete time is known as the fundamental Theorem of Asset Pricing. In the presence of convex constraints on the trading strategies, we extend this theorem...

Dans ce travail, nous proposons un cadre general pour les modeles discrets et finis. Tout d'abord, nous montrons un resultat d'absence d'arbitrage. Puis, nous l'appliquons afin de retrouver les resultats deja connus sur les couts de transaction et les contraintes de vente a decouvert, pour des...

This paper develops methods for relating the prices of discrete- and continuous-time versions of path-dependent options sensitive to external values of the underlying aset. including lookback, barrier, and hindsight options. The relationships take the form of correction terms that can be...